{"product_id":"carrier-transformer-fc4dnf060010aaaa","title":"OEM Carrier Transformer HT01BD223 for Model FC4DNF060010AAAA","description":"\u003cdiv\u003e\n\u003ch1\u003eOEM Carrier Transformer HT01BD223 for Model FC4DNF060010AAAA\u003c\/h1\u003e\n\u003cp\u003eThis genuine OEM Carrier transformer (HT01BD223) reduces incoming line voltage to the 24V control power that operates the control board, thermostat, relays, and contactor in your Carrier FC4DNF060010AAAA fan coil. When the system goes completely unresponsive, the thermostat display is dark, or the unit won't act on a heating or cooling call, a failed transformer is one of the most common and affordable causes to rule out first. Built to Carrier's exact specifications, this transformer supplies the correct secondary voltage your equipment needs for safe, reliable operation — without the uncertainty of universal replacements. It fits the FC4DNF060010AAAA directly, mounting to the existing bracket with a matching terminal layout, so no rewiring is required. Installation is moderate and ideal for an HVAC professional, though a careful DIYer with low-voltage experience and a multimeter can finish in under an hour. Always disconnect power before servicing. We keep this transformer in stock for fast shipping — order before 3PM CST and it ships the same business day to get your comfort system back online.\u003c\/p\u003e\n\u003ch2\u003eCompatibility\u003c\/h2\u003e\n\u003cp\u003eThis part is compatible with Carrier model FC4DNF060010AAAA.\u003c\/p\u003e\n\u003ch2\u003eShipping\u003c\/h2\u003e\n\u003cp\u003eSame-day shipping before 3 PM CST. 30-day returns on uninstalled parts.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Carrier","offers":[{"title":"Default Title","offer_id":62947186737523,"sku":"carrier-transformer-fc4dnf060010aaaa","price":49.95,"currency_code":"USD","in_stock":true}],"url":"https:\/\/nationalhvacparts.com\/products\/carrier-transformer-fc4dnf060010aaaa","provider":"National HVAC Parts","version":"1.0","type":"link"}